Bambu X1 A1 Build Plates holder with eject button

Update: 19.3.2025 - New AMS SLIM generation available here: https://makerworld.com/en/models/1227809-build-plates-holder-x1-a1-p1-with-button-ams-slim#profileId-1246011

Update 5.1.2025

The new design has just been released. Try it out here: https://makerworld.com/en/models/954070#profileId-923719

If you are looking for A1 Mini version, click here: https://makerworld.com/en/models/796985#profileId-736246

Update 3.1.2025

• Buttons with numbers in different color by default. You can change to the one color using Remove last filament button in Bambu studio
• Added embossed lettering This side UP / UP on body and arm for easier installation / assembly

Previous improvements:

Based on user experience I added 10-15mm brim to the model.

Added Drill-Mounting guide1:1 A3.pdf

Based on user reviews, height of the button bar has been modified to slide more easily.

Clean with build plate with soap / IPA / use 3Dlac to prevent the model from lifting from the base during printing.

In addition, for example A1 is a type of printer where the base moves, which creates drafts and increases the risk of the model lifting. The risk of lifting is further increased if the room where you are printing is drafty - just have an open window and you're already in trouble.

I use the X1C, I keep the door closed while printing PLA, and the top glass is slightly raised for ventilation. I use soap and IPA to clean the bed once in a while and I haven't encountered any problems with lifting.

Hi,

I have many build plates for both Prusa and Bambu printers and very limited space for storage. So I decided to create plates holder with eject button for easy insertion and removal.

It is without complicated extraction. There is no danger of the printing surface getting dirty from greasy fingers :-)

By pressing the button, the build plate ejects approximately 3 cm. By inserting the build plate, the button will pop out easily.

Use 4 pcs of 3-4mm in diameter countersink head screws to fix the holder.

Vertical orientation is also working correctly

You can choose from several options from my profile:

• for Bambu X1/P1/A build plates

Size:

• for 1 build plate
• for 2 build plates
• for 4 build plates
• for 6 build plates

Buttons:

• With big or small eject buttons
• Without eject buttons body
• Reversed version of buttons

Assembly:

1. Print Holder body (Left+Right), buttons and arms of selected version
2. Insert button to the holder. Slide in / out several times to clean slot and button bar from printing imperfections
3. Rotate Holder body and arm to see UP / This side UP
4. Push the arm into the holder firmly. Align the teeth according to the picture. UP text on arm helps you with orientation
5. Mount holder using 3mm/4mm screws. Strong double-sided mounting tape based on foam/gel is also OK

Note: The images and videos may show different versions of the X1 / A1Mini / Prusa mount. This is to illustrate the functionality.

Printing instructions:

PLA / PETG is OK

3 perimeters, 20 % infill, no supports

Body print orientation:

Optional part - Spacer

Two makers told me that sometimes the back arm falls out when inserting the plate.

The most common reason why this happens is that some printing materials like PETG are more flexible than PLA and the individual floors of the holder will stretch slightly. If this happens to you, use a simple adjustment - 6xSpacer.

I created this simple fix. Just print it on a 3D printer and snap it into the gap between the arms at the cutout for easier insertion. The model weighs 3 grams and contains 6 pieces (for up to 6 plates holder).